<template>
    <div>
         <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>商品管理</el-breadcrumb-item>
        <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片 -->
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query"
                     clearable @clear="getGoodsList">
                         <el-button slot="append" 
                         icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddpage">添加商品</el-button>
                </el-col>
            </el-row>

            <!--商品信息列表  -->
            <el-table :data="goodslist" border stripe>
                <el-table-column label="#" type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格（元）" prop="goods_price" width="95px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
                <el-table-column label="创建时间" prop="add_time" width="140px">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="130px">
                  <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit"
                         size="mini" @click="goAddpage"></el-button>
                        <el-button type="danger" icon="el-icon-delete"
                         size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                  </template>
                </el-table-column>
            </el-table>

            <!-- 分页器 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[5, 10, 15, 20]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total" background>
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
    data(){
        return{
            queryInfo:{
                query:'',
                pagenum:1,
                pagesize:20
            },
            // 商品列表
            goodslist:[],
            // 总数据
            total:0
        }
    },
    methods:{
        // 根据分页获取对应的商品
        async getGoodsList(){
            const {data:res} = await this.$http.get('goods',{
                params:this.queryInfo
            })

            if(res.meta.status !== 200){
                return this.$message.error('获取商品列表失败！')
            }
            this.$message.success("获取商品列表成功！")
            console.log(res.data);
            this.goodslist = res.data.goods
            this.total = res.data.total
        },
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        async removeById(id){
            const confirmResult = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning',
                center: true
            }).catch(error => error)

            if(confirmResult !== 'confirm'){
                return this.$message.info('已经取消删除')
            }

            const {data:res} =await this.$http.delete(`goods/${id}`)

            if(res.meta.status !== 200){
                return this.$message.error('删除失败')
            }
            this.$message.success('删除成功')
            this.getGoodsList()
        },
        goAddpage(){
            this.$router.push('/goods/add')
        }

    },
    created(){
        this.getGoodsList()
    }
}
</script>

<style scoped>
.el-table{
    margin-top: 15px;
    margin-bottom: 15px;
}
</style>